公开(公告)号：US10832618B2

公开(公告)日：2020-11-10

申请号：US16151665

申请日：2018-10-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling Gao ,  Chengchung Yang

IPC: G09G3/3291 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3283 ,  G09G3/3233

Abstract: The present disclosure relates to a pixel circuit and a method of driving the pixel circuit, and a display device. A pixel circuit, including: a light emitting device; a driving circuit; a data writing circuit; a light emitting control circuit; a threshold compensation circuit; a first storage circuit; and a second storage circuit.

公开(公告)号：US10803806B2

公开(公告)日：2020-10-13

申请号：US16332783

申请日：2018-04-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling Gao ,  Chengchung Yang ,  Kuanjun Peng ,  Wei Qin ,  Xiangxiang Zou ,  Yang Yang

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3208

Abstract: Pixel circuit and display substrate and driving methods, and display apparatus are provided. Pixel circuit includes: driving resetting sub-circuit to input voltage at first initial voltage terminal to gate of driving transistor in driving sub-circuit under control of first resetting signal terminal; writing compensation sub-circuit to input data voltage to driving sub-circuit and compensate driving sub-circuit under control of scanning signal terminal in writing compensation phase, and input reference voltage output at data voltage terminal to driving sub-circuit in blanking phase, so driving transistor in On-Bias state; light-emitting resetting sub-circuit to input voltage at first initial voltage terminal to light-emitting device to reset light-emitting device under control of scanning signal terminal; and light-emitting enabling sub-circuit to provide voltage at first power supply voltage terminal to driving sub-circuit and connect driving sub-circuit to light-emitting device under control of enabling signal terminal; and driving sub-circuit to provide driving current to light-emitting device.

公开(公告)号：US10755636B2

公开(公告)日：2020-08-25

申请号：US16214887

申请日：2018-12-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengchung Yang ,  Xueling Gao ,  Kuanjun Peng

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3258 ,  H01L27/32 ,  G09G3/3275 ,  G09G3/3266

Abstract: The present disclosure discloses a pixel circuit and a driving method thereof, a display substrate and a display device, the pixel circuit includes: an initialization sub-circuit, a writing compensation sub-circuit, a light-emitting enabling sub-circuit, a light-emitting device, and a driving sub-circuit, the light-emitting enabling sub-circuit is configured to couple the driving sub-circuit to the light-emitting device under control of an enabling signal terminal. The initialization sub-circuit is configured to input a voltage of an initial voltage terminal to a gate of a driving transistor in the driving sub-circuit under control of a reset signal terminal to initialize the driving sub-circuit. The writing compensation sub-circuit is configured to input, under control of a scanning signal terminal, a data voltage output from a data signal terminal to the driving sub-circuit to perform data compensation on the driving sub-circuit.

公开(公告)号：US20190371238A1

公开(公告)日：2019-12-05

申请号：US16390204

申请日：2019-04-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xueling Gao ,  Jikai Yao ,  Kuanjun Peng ,  Chengchung Yang

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/32

Abstract: A pixel circuit, a method for driving the same, a display panel and a display device are provided. The pixel circuit includes a driver transistor, a data writing sub-circuit, an initializing sub-circuit, a voltage prewriting sub-circuit, a threshold compensating sub-circuit, a first light-emission control sub-circuit, a second light-emission control sub-circuit, a capacitor, and a light-emitting element. The voltage prewriting sub-circuit pre-stores voltage of a light-emission supply voltage terminal into the capacitor before the light-emitting element emits light, the magnitude of light-emission current is dependent upon the voltage of the light-emission supply voltage terminal, and independent of the voltage of the first voltage source.

公开(公告)号：US20190103578A1

公开(公告)日：2019-04-04

申请号：US16117663

申请日：2018-08-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Chengchung Yang ,  Tingting Zhou

IPC: H01L51/52 ,  H01L27/32 ,  H01L21/8238

Abstract: Embodiments of the present disclosure provide an array substrate and a display apparatus having the array substrate. The array substrate includes: a plurality of pixel units which are arranged in an array and, which include a plurality of pixel electrodes arranged at intervals, respectively; a conductive layer disposed above or below two adjacent ones of the plurality of pixel electrodes, and configured such that when a preset electric potential is applied to the conductive layer, a first equivalent capacitance is formed between the conductive layer and a first one of the two adjacent pixel electrodes and a second equivalent capacitance is formed between the conductive layer and a second one of the two adjacent pixel electrodes.

公开(公告)号：US12225805B2

公开(公告)日：2025-02-11

申请号：US17754056

申请日：2021-03-26

Applicant: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Weitao Ma ,  Lu Yang ,  Chengchung Yang

IPC: H10K59/80 ,  H10K59/122 ,  H10K59/38

Abstract: A display panel includes: a substrate; a plurality of sub-pixels; an encapsulation layer; a light shielding layer which is located on a side of the encapsulation layer away from the substrate and is provided with a plurality of openings corresponding to the plurality of sub-pixels respectively; a first color film layer including a plurality of basic units covering the plurality of openings in the light shielding layer respectively; and a second color film layer which is located on a side of the first color film layer away from the substrate and includes a plurality of overlay units covering an edge of at least one basic unit of the plurality of basic units respectively. A color of the basic unit is different form a color of the overlay unit covering the basic unit.

公开(公告)号：US11984081B2

公开(公告)日：2024-05-14

申请号：US18150092

申请日：2023-01-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengchung Yang

IPC: G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0426

Abstract: The present disclosure relates to a pixel circuit and a method of driving the same, and a display device. A pixel circuit, including: a light emitting device; a driving sub-circuit configured to drive the light emitting device, the driving sub-circuit including a driving transistor configured to generate a driving current flowing through the light emitting device so that the light emitting device emits light; and a reset sub-circuit configured to reset a voltage between a gate electrode and a second electrode of the driving transistor.

公开(公告)号：US11651737B2

公开(公告)日：2023-05-16

申请号：US17726875

申请日：2022-04-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tieshi Wang ,  Xueling Gao ,  Zhiqiang Xu ,  Chengchung Yang ,  Haoran Liu

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266

Abstract: A circuit for driving a pixel includes a driving transistor having a first end connected to a first node, a control end connected to a second node, and a second end connected to a third node; a writing circuit connected to a first scanning signal and the first node and configured to transmit a data signal to the first node; a reset circuit connected to a second scanning signal and configured to transmit a reference signal to the second node; a compensation circuit connected to a compensation control signal and configured to put through a connection between the second end and the control end of the driving transistor in response to the compensation control signal, wherein the compensation control signal is different from the first scanning signal and the second scanning signal; and an energy storage circuit connected between a first power end and the second node.

公开(公告)号：US11620942B2

公开(公告)日：2023-04-04

申请号：US16466418

申请日：2018-11-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chengchung Yang ,  Xueling Gao ,  Kuanjun Peng

IPC: G09G3/3233

Abstract: A pixel circuit, a driving method thereof and a display device are provided. The pixel circuit includes a drive circuit, a data writing circuit, a compensation-and-reset circuit, and a storage circuit. The drive circuit includes a control terminal, a first terminal and a second terminal, and is configured to control a driving current for driving a light-emitting element to emit light; the data writing circuit is configured to write a data signal to the control terminal of the drive circuit in response to a scanning signal; the compensation-and-reset circuit is configured to apply the reset voltage to the control terminal of the drive circuit in response to a compensation signal; the storage circuit is configured to store the data signal that is wrote and a threshold voltage, and to couple and adjust a voltage of the control terminal of the drive circuit.

公开(公告)号：US20220262310A1

公开(公告)日：2022-08-18

申请号：US17661318

申请日：2022-04-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling GAO ,  Kuanjun Peng ,  Chengchung Yang ,  Xiangxiang Zou ,  Wei Qin

IPC: G09G3/3233

Abstract: A display substrate and a display device. The display substrate includes a pixel circuit in which the driving circuit controls a driving current for driving the light emitter element to emit light; the first light emission control circuit applies a first voltage to a first terminal of the driving circuit in response to a first light emission control signal; the second light emission control circuit applies the driving current to the light emitter element in response to a second light emission control signal; the first reset circuit applies a first reset voltage to the control terminal of the driving circuit in response to a first reset signal; the first reset signal and the first light emission control signal are simultaneously turn-on signals during a period; the first light emission control line and the second light emission control line extend along a first direction and are arranged in a second direction.